tests/unit/test-util-sockets: fix mem-leak on error object

The test fails with --enable-asan as the error struct is never freed.
In the case where the test expects a success but it fails, let's also

tests/unit/test-util-sockets: fix mem-leak on error object

The test fails with --enable-asan as the error struct is never freed.
In the case where the test expects a success but it fails, let's also
report the error for debugging (it will be freed internally).

Fixes 316e8ee8d6 ("util/qemu-sockets: Refactor inet_parse() to use QemuOpts")

Signed-off-by: Matheus Tavares Bernardino <matheus.bernardino@oss.qualcomm.com>
Reviewed-by: Juraj Marcin <jmarcin@redhat.com>
Message-ID: <518d94c7db20060b2a086cf55ee9bffab992a907.1748280011.git.matheus.bernardino@oss.qualcomm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>

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util/qemu-sockets: Introduce inet socket options controlling TCP keep-alive

With the default TCP stack configuration, it could be even 2 hours
before the connection times out due to the other side n

util/qemu-sockets: Introduce inet socket options controlling TCP keep-alive

With the default TCP stack configuration, it could be even 2 hours
before the connection times out due to the other side not being
reachable. However, in some cases, the application needs to be aware of
a connection issue much sooner.

This is the case, for example, for postcopy live migration. If there is
no traffic from the migration destination guest (server-side) to the
migration source guest (client-side), the destination keeps waiting for
pages indefinitely and does not switch to the postcopy-paused state.
This can happen, for example, if the destination QEMU instance is
started with the '-S' command line option and the machine is not started
yet, or if the machine is idle and produces no new page faults for
not-yet-migrated pages.

This patch introduces new inet socket parameters that control count,
idle period, and interval of TCP keep-alive packets before the
connection is considered broken. These parameters are available on
systems where the respective TCP socket options are defined, that
includes Linux, Windows, macOS, but not OpenBSD. Additionally, macOS
defines TCP_KEEPIDLE as TCP_KEEPALIVE instead, so the patch supplies its
own definition.

The default value for all is 0, which means the system configuration is
used.

Signed-off-by: Juraj Marcin <jmarcin@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>

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util/qemu-sockets: Refactor inet_parse() to use QemuOpts

Currently, the inet address parser cannot handle multiple options where
one is prefixed with the name of the other. For example, with the
'ke

util/qemu-sockets: Refactor inet_parse() to use QemuOpts

Currently, the inet address parser cannot handle multiple options where
one is prefixed with the name of the other. For example, with the
'keep-alive-idle' option added, the current parser cannot parse
'127.0.0.1:5000,keep-alive-idle=60,keep-alive' correctly. Instead, it
fails with "error parsing 'keep-alive' flag '-idle=60,keep-alive'".

To resolve these issues, this patch rewrites the inet address parsing
using the QemuOpts parser, which the inet_parse_flag() function tries to
mimic. This new parser supports all previously supported options and on
top of that the 'numeric' flag is now also supported. The only
difference is, the new parser produces an error if an unknown option is
passed, instead of silently ignoring it.

Signed-off-by: Juraj Marcin <jmarcin@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>

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tests/unit/test-util-sockets: Remove temporary file after test

test-util-sockets leaves the temporary socket files around in the
temporary files folder. Let's better remove them at the end of the
te

tests/unit/test-util-sockets: Remove temporary file after test

test-util-sockets leaves the temporary socket files around in the
temporary files folder. Let's better remove them at the end of the
testing.

Fixes: 4d3a329af5 ("tests/util-sockets: add abstract unix socket cases")
Message-ID: <20240226082728.249753-1-thuth@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>

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Remove qemu-common.h include from most units

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20220323155743.1585078-33-marcandre.lureau@redhat.com>
Signed-off-by: Paolo B

Remove qemu-common.h include from most units

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20220323155743.1585078-33-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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tests/unit/test-util-sockets: Use g_file_open_tmp() to create temp file

Similarly to commit e63ed64c6d1 ("tests/qtest/virtio-net-failover:
Use g_file_open_tmp() to create temporary file"), avoid cal

tests/unit/test-util-sockets: Use g_file_open_tmp() to create temp file

Similarly to commit e63ed64c6d1 ("tests/qtest/virtio-net-failover:
Use g_file_open_tmp() to create temporary file"), avoid calling
g_test_rand_int() before g_test_init(): use g_file_open_tmp().

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20211224234504.3413370-1-philmd@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>

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test-util-sockets: Add stub for monitor_set_cur()

Without this stub, the next commit fails to link. I suspect the real
cause is 947e47448d "monitor: Use getter/setter functions for
cur_mon".

Cc: K

test-util-sockets: Add stub for monitor_set_cur()

Without this stub, the next commit fails to link. I suspect the real
cause is 947e47448d "monitor: Use getter/setter functions for
cur_mon".

Cc: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20210318155519.1224118-9-armbru@redhat.com>

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tests: Move unit tests into a separate directory

The main tests directory still looks very crowded, and it's not
clear which files are part of a unit tests and which belong to
a different test subsy

tests: Move unit tests into a separate directory

The main tests directory still looks very crowded, and it's not
clear which files are part of a unit tests and which belong to
a different test subsystem. Let's clean up the mess and move the
unit tests to a separate directory.

Message-Id: <20210310063314.1049838-1-thuth@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>

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sockets: Make abstract UnixSocketAddress depend on CONFIG_LINUX

The abstract socket namespace is a non-portable Linux extension. An
attempt to use it elsewhere should fail with ENOENT (the abstract

sockets: Make abstract UnixSocketAddress depend on CONFIG_LINUX

The abstract socket namespace is a non-portable Linux extension. An
attempt to use it elsewhere should fail with ENOENT (the abstract
address looks like a "" pathname, which does not resolve). We report
this failure like

Failed to connect socket abc: No such file or directory

Tolerable, although ENOTSUP would be better.

However, introspection lies: it has @abstract regardless of host
support. Easy enough to fix: since Linux provides them since 2.2,
'if': 'defined(CONFIG_LINUX)' should do.

The above failure becomes

Parameter 'backend.data.addr.data.abstract' is unexpected

I consider this an improvement.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>

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sockets: Fix default of UnixSocketAddress member @tight

An optional bool member of a QAPI struct can be false, true, or absent.
The previous commit demonstrated that socket_listen() and
socket_conne

sockets: Fix default of UnixSocketAddress member @tight

An optional bool member of a QAPI struct can be false, true, or absent.
The previous commit demonstrated that socket_listen() and
socket_connect() are broken for absent @tight, and indeed QMP chardev-
add also defaults absent member @tight to false instead of true.

In C, QAPI members are represented by two fields, has_MEMBER and MEMBER.
We have:

has_MEMBER MEMBER
false true false
true true true
absent false false/ignore

When has_MEMBER is false, MEMBER should be set to false on write, and
ignored on read.

For QMP, the QAPI visitors handle absent @tight by setting both
@has_tight and @tight to false. unix_listen_saddr() and
unix_connect_saddr() however use @tight only, disregarding @has_tight.
This is wrong and means that absent @tight defaults to false whereas it
should default to true.

The same is true for @has_abstract, though @abstract defaults to
false and therefore has the same behavior for all of QMP, HMP and CLI.
Fix unix_listen_saddr() and unix_connect_saddr() to check
@has_abstract/@has_tight, and to default absent @tight to true.

However, this is only half of the story. HMP chardev-add and CLI
-chardev so far correctly defaulted @tight to true, but defaults to
false again with the above fix for HMP and CLI. In fact, the "tight"
and "abstract" options now break completely.

Digging deeper, we find that qemu_chr_parse_socket() also ignores
@has_tight, leaving it false when it sets @tight. That is also wrong,
but the two wrongs cancelled out. Fix qemu_chr_parse_socket() to set
@has_tight and @has_abstract; writing testcases for HMP and CLI is left
for another day.

Fixes: 776b97d3605ed0fc94443048fdf988c7725e38a9
Reported-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>

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test-util-sockets: Test the complete abstract socket matrix

The test covers only two out of nine combinations. Test all nine.
Four turn out to be broken. Marked /* BUG */.

Reviewed-by: Paolo Bonz

test-util-sockets: Test the complete abstract socket matrix

The test covers only two out of nine combinations. Test all nine.
Four turn out to be broken. Marked /* BUG */.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>

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test-util-sockets: Synchronize properly, don't sleep(1)

The abstract sockets test spawns a thread to listen and accept, and a
second one to connect, with a sleep(1) in between to "ensure" the
former

test-util-sockets: Synchronize properly, don't sleep(1)

The abstract sockets test spawns a thread to listen and accept, and a
second one to connect, with a sleep(1) in between to "ensure" the
former is listening when the latter tries to connect. Review fail.
Risks spurious test failure, say when a heavily loaded machine doesn't
schedule the first thread quickly enough. It's also slow.

Listen and accept in the main thread, and start the connect thread in
between. Look ma, no sleep! Run time drops from 2s wall clock to a
few milliseconds.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>

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test-util-sockets: Factor out test_socket_unix_abstract_one()

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@re

test-util-sockets: Factor out test_socket_unix_abstract_one()

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>

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test-util-sockets: Clean up SocketAddress construction

The thread functions build the SocketAddress from global variable
@abstract_sock_name and the tight flag passed as pointer
argument (either NUL

test-util-sockets: Clean up SocketAddress construction

The thread functions build the SocketAddress from global variable
@abstract_sock_name and the tight flag passed as pointer
argument (either NULL or (gpointer)1). There is no need for such
hackery; simply pass the SocketAddress instead.

While there, dumb down g_rand_int_range() to g_random_int().

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>

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test-util-sockets: Correct to set has_abstract, has_tight

The code tested doesn't care, which is a bug I will fix shortly.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Eric Blake <

test-util-sockets: Correct to set has_abstract, has_tight

The code tested doesn't care, which is a bug I will fix shortly.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>

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test-util-sockets: Plug file descriptor leak

Fixes: 4d3a329af59ef8acd076f99f05e82531d8129b34
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>

test-util-sockets: Plug file descriptor leak

Fixes: 4d3a329af59ef8acd076f99f05e82531d8129b34
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>

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monitor: Use getter/setter functions for cur_mon

cur_mon really needs to be coroutine-local as soon as we move monitor
command handlers to coroutines and let them yield. As a first step, just
remove

monitor: Use getter/setter functions for cur_mon

cur_mon really needs to be coroutine-local as soon as we move monitor
command handlers to coroutines and let them yield. As a first step, just
remove all direct accesses to cur_mon so that we can implement this in
the getter function later.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20201005155855.256490-4-kwolf@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

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tests: fix test-util-sockets.c

Fixes following errors:
Running test test-util-sockets
ERROR test-util-sockets - missing test plan

# Start of name tests
**
ERROR:../tests/test-util-sockets.c:93:test

tests: fix test-util-sockets.c

Fixes following errors:
Running test test-util-sockets
ERROR test-util-sockets - missing test plan

# Start of name tests
**
ERROR:../tests/test-util-sockets.c:93:test_socket_fd_pass_name_good: assertion failed (fd != -1): (-1 != -1)
Bail out! ERROR:../tests/test-util-sockets.c:93:test_socket_fd_pass_name_good: assertion failed (fd != -1): (-1 != -1)

First should call to qemu_init_main_loop before socket_init,
then on win32 doesn't support for SOCKET_ADDRESS_TYPE_FD socket type

Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20200915121318.247-21-luoyonggang@gmail.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>

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tests: fix a memory in test_socket_unix_abstract_good

After build qemu with '-fsanitize=address' extra-cflags,
'make check' show following leak:

====================================================

tests: fix a memory in test_socket_unix_abstract_good

After build qemu with '-fsanitize=address' extra-cflags,
'make check' show following leak:

=================================================================
==44580==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 2500 byte(s) in 1 object(s) allocated from:
#0 0x7f1b5a8b8d28 in __interceptor_calloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xded28)
#1 0x7f1b5a514b10 in g_malloc0 (/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x51b10)
#2 0xd79ea4e4c0ad31c3 (<unknown module>)

SUMMARY: AddressSanitizer: 2500 byte(s) leaked in 1 allocation(s).

Call 'g_rand_free' in the end of function to avoid this.

Fixes: 4d3a329af59("tests/util-sockets: add abstract unix socket cases")
Signed-off-by: Li Qiang <liq3ea@163.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by:  xiaoqiang zhao <zxq_yx_007@163.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>

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Get rid of the libqemustub.a remainders

libqemustub.a has been removed in commit ebedb37c8d ("Makefile: Remove
libqemustub.a"). Some remainders have been missed. Remove them now.

Message-Id: <20200

Get rid of the libqemustub.a remainders

libqemustub.a has been removed in commit ebedb37c8d ("Makefile: Remove
libqemustub.a"). Some remainders have been missed. Remove them now.

Message-Id: <20200804170055.2851-8-thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>

show more ...

tests/util-sockets: add abstract unix socket cases

add cases to test tight and non-tight for abstract address type

Signed-off-by: xiaoqiang zhao <zxq_yx_007@163.com>
Signed-off-by: Daniel P. Berran

tests/util-sockets: add abstract unix socket cases

add cases to test tight and non-tight for abstract address type

Signed-off-by: xiaoqiang zhao <zxq_yx_007@163.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>

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hmp: Fail gracefully if chardev is already in use

Trying to attach a HMP monitor to a chardev that is already in use
results in a crash because monitor_init_hmp() passes &error_abort to
qemu_chr_fe_

hmp: Fail gracefully if chardev is already in use

Trying to attach a HMP monitor to a chardev that is already in use
results in a crash because monitor_init_hmp() passes &error_abort to
qemu_chr_fe_init():

$ ./x86_64-softmmu/qemu-system-x86_64 --chardev stdio,id=foo --mon foo --mon foo
QEMU 4.2.50 monitor - type 'help' for more information
(qemu) Unexpected error in qemu_chr_fe_init() at chardev/char-fe.c:220:
qemu-system-x86_64: --mon foo: Device 'foo' is in use
Abgebrochen (Speicherabzug geschrieben)

Fix this by allowing monitor_init_hmp() to return an error and passing
any error in qemu_chr_fe_init() to its caller instead of aborting.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20200224143008.13362-19-kwolf@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

show more ...

qmp: Fail gracefully if chardev is already in use

Trying to attach a QMP monitor to a chardev that is already in use
results in a crash because monitor_init_qmp() passes &error_abort to
qemu_chr_fe_

qmp: Fail gracefully if chardev is already in use

Trying to attach a QMP monitor to a chardev that is already in use
results in a crash because monitor_init_qmp() passes &error_abort to
qemu_chr_fe_init():

$ ./x86_64-softmmu/qemu-system-x86_64 --chardev stdio,id=foo --mon foo,mode=control --mon foo,mode=control
Unexpected error in qemu_chr_fe_init() at chardev/char-fe.c:220:
qemu-system-x86_64: --mon foo,mode=control: Device 'foo' is in use
Abgebrochen (Speicherabzug geschrieben)

Fix this by allowing monitor_init_qmp() to return an error and passing
any error in qemu_chr_fe_init() to its caller instead of aborting.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20200224143008.13362-18-kwolf@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

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socket: Add backlog parameter to socket_listen

Current parameter was always one. We continue with that value for now
in all callers.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by:

socket: Add backlog parameter to socket_listen

Current parameter was always one. We continue with that value for now
in all callers.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
---
Moved trace to socket_listen

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test: skip tests if socket_check_protocol_support() failed

Skip the tests if socket_check_protocol_support() failed, but do run
g_test_run() to keep TAP harness happy.

Signed-off-by: Marc-André Lur

test: skip tests if socket_check_protocol_support() failed

Skip the tests if socket_check_protocol_support() failed, but do run
g_test_run() to keep TAP harness happy.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>

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